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被称“国宝”的大熊猫,由于主食竹开花枯死,致使大熊猫食料缺乏,引起国内外的关注。平武县是大熊猫主要栖息地之一。大熊猫主食竹主要分布在山地常绿阔叶林、山地常绿落叶混交林和亚高山常绿针叶林林内,是主要的灌木层植物,它的垂直分布十分明显,从海拔1600～3100米都有,主食的竹类有巴山木竹、青川、糙花、华西、缺包箭竹。由于主食竹分布在林内,现在主动遥感技术不能获取主食竹的信息,即采用常规的判读方法不能从彩红外片上提取主食竹信息。为此,在1987年平武县摩天岭山系进行大熊猫主食竹的遥感调查时,特对主食竹的遥感解译技术进行了专题研究。下面就主食竹的解译技术作一探讨。
Known as the “national treasure” giant panda, due to the death of the staple food bamboo blossom, resulting in lack of food for giant pandas, aroused domestic and international attention. Pingwu County is one of the major pandas’ habitat. Giant panda staple food bamboo are mainly distributed in the mountain evergreen broad-leaved forest, mountain evergreen and deciduous mixed forest and subalpine evergreen coniferous forest, is the main shrub plant, its vertical distribution is obvious, from 1600 ~ 3100 meters above sea level Have, the staple food of Bashan wood bamboo, Qingchuan, rough flower, Huaxi, missing arrow bamboo. Since the staple food bamboo is distributed in the forest, active remote sensing technology can not acquire the information of staple food bamboo at present, that is, the traditional staple bamboo information can not be extracted from the color infrared film using the conventional interpretation method. To this end, in 1987, Ping Mountain County, Mount Tianping Mount Giant Panda bamboo remote sensing survey, special on bamboo staple remote sensing interpretation technology for a special study. Here’s the staple food bamboo interpretation technology for a discussion.